Sub tragus ear unit



FIG. 1 is a front, right side, and top perspective view of a sub tragus ear unit showing the new design;

FIG. 2 is a top plan thereof;

FIG. 3 is a front elevation thereof;

FIG. 4 is a right side elevation thereof;

FIG. 5 is a rear elevation thereof;

FIG. 6 is a left side elevation thereof; and,

FIG. 7 is a bottom plan thereof.

The broken lines shown in FIGS. 1-7 illustrate portions of the sub tragus ear unit that form no part of the claimed design. 

CLAIM The ornamental design for a sub tragus ear unit, as shown and described. 